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Finding the Fourth Proportional to 359,356.65, 538,918.36 and 119,406.12

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Solution

The fourth proportional to 359,356.65, 538,918.36 and 119,406.12 is: 179,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,356.65 : 538,918.36 = 119,406.12 : x
  2. Step 2: Convert to fraction form
    359,356.65/538,918.36 = 119,406.12/x
  3. Step 3: Cross multiply
    359,356.65x = 538,918.36 × 119,406.12
  4. Step 4: Simplify right side
    359,356.65x = 64,350,150,364.36
  5. Step 5: Solve for x
    x = 64,350,150,364.36/359,356.65
  6. Step 6: Final answer
    x = 179,070.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.